Chuck.



1. H. RUSBY.

CHUCK.

APPLICATION man Dsc. 1, 1911.

l @7944L4 v Patented June 25, 1918.

2 SHEETS-SHEET J. H. RUSBY.

CHUCK.

APPLlcATloN FILED Dim, 19u.

LMUA Patented June 25,1918.

' 2 SHEETS-sneu 2 W/ TWESS @PW/wy JOSEPH H. RUSBY, OF NUTLEY, NEW JERSEY.

CHUCK.

Specification of Letters Patent.

Patented dfnne, 191%.

Application filed. December 1, 1917.` Serial No. 204,960.

L To all 'whom t may concern.'

Be it known that I, JOSEPH 1-1. RUSBY, a citizen of the United States, and a resident of Nutley, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Chucks, of which the following is a specilication.

The principal objects of the present invention are, rst, to provide a durable chuck which shall be strong mechanically and capable of eiiiciently gripping the shanks of tools of various sizes and kinds; second, to provide for the application for hand gripping power in such a way that the advantage of considerable leverage. is obtained,

and third, to provide an effectiveI combination of comparatively simple parts constituting a relatively small chuck of widel application and adapted to operate as a twoway chuck, meaning, one in which the tool remains gripped no matter in which direction the chuck, as a whole, is rotated.

Other objects of the invention will appeary from the following description which will be given in connection with the embodiment of 1t chosen for illustration in the accompanying drawings, in whichj Figure 1, is an elevational view, principally in central section, of a chuck embodymg features of the invention.

Fig. 2, is a top or plan view of the same.

Fig. 3, is a section on 'the line 3--3 of Fig. 1. A

Fig. 4, is a viewV of the upper part of the headed spindle of which the head constitutes a base.

Fig. 5, is a top or plan View of Fig. 4.

Figs. 6 and 7,`are respectively a side view and an elevation of one of the jaws.

Figs. 8, 9, 10 and 11 are respectively a central section, a top View, a bottom view,

and an elevation `of the `inner, part of the jaw-shell. j

Fig. 12,- is a perspective view of one part of the base. v

Figs. 13 and 14, are respectively a plan and va side view of the other part of the base.

Fig. 15, is a perspective view of the shoul-V dered end 0f the spindle, and

Fi 16, is a view illustrating a base einbodylng a modification.

In the drawings 1, is a spindle threaded as at 2 and provided with a base. j As shown, Fig. 5, the base 3 consists of two parts and is secured to the spindle by means of a screw l4,l but this is not essential as the structure can'be made in one piece. The base is rotatively fixed in respect to the spindle and is provided with undercut radial grooves 6 and may be provided with projections 5. Where the base 3, is made in two parts, one of these parts, shown Yin Fig. 12, is provided with parts ofthe projections 5 and with the undercut grooves 6, and the other` part of the base, shown in Figs. 13 and 14, is provided with parts 5a, of the projections 5, and isadapted to receive a shoulder?, on the end of the spindle. This shoulder 2a, is shown as fiat-sided to help in connecting the base and spindle in fixed rotative relation. By making the base in two kparts the' assemblage is facilitated, as will be described. 7 are jaws provided with extend-A ing feet 8, radially slidable in said undercut grooves and with feet or ribs 8a, so that, in respect to endwise movement, the jaws move with the spindle but can move alsov radially of the base 3. 9, is a j aw-shell rotatively fixed andlongitudinally movable in respect to the spindle 1 and having slots 10 for inclosing the jaws and having a con` traoted extension 11 with -space between it and the spindle. The projections 5 of the base, when present, are arrangedin the slots 10 of the jaw-shell so that the spindle and shell turn as one piece `but arevmovable endwise in respect to each other. The j aw-shell is shown as consisting of an inner part through which the slots are cut and an outer part or cap l2 which maybe put on and se cured to place as by a screw 13, after thejaws have been slipped into their slots. Col? lectively 14 is an operating shell rotatably connected `with the jaw-shell through the media of rollers 17 and bushing 16 and with the spindle directly by a rentrant, contracted tapped neck 15 engaging the threaded portion of the spindle and arranged in the space between the spindle and the jawshelled extension 11. 16, is a bushing attached as by means of a thread to the exten` sion 11 of the jaw-shell and constituting one` member or race of a roller bearing, of which the rollers are indicated at 17. 18 is the other element or race of the roller bearing and it is secured to the ,rest ofthe jaw operating shell. One way of securing the part 18 to the rest of the shell is to employ a tool receiving piece 19 in connection with the` thread 20.

When the shell 14 is turned, it is shifted with plessi! t yto 'slidel'radiallf" Torque is trans- Iiitfwn the, ,Sp''dl'e t0. the" jaw-Shell' by me ns of the extensions 5` which,l when preseetyreleve the 'jews from the .Strain Of the, toi'qiie'- When' a w91 hashes/'11. gripped bj1' the iaws. by turning the 'Qneiatfie' Shell 1 ci, its einen than@ 'gripping wm @10511- tiille iliatijf which Werf the: chucli'is d'5 i1- 'the `Shell 151 is 'turned nk Lofi a ne. @arbe inserat in the' er '19d/and" ilsfd asa means for o lshell l.

Y rl Pisjle@tions`,5I andf in" the Slots 10.5."Yvl1fP'Qi1l/tlie' Spindle. can be, inserted into, the, `ty in' thifjaw operating Shell andthe El, inserted toholld the parts il '.11ct .mrrsing arotatablespindle, af has@ @ed respect' 1110' the' Spindle, radi: alyiXteild-ble and' Contratble jaws sin rated to; @tete ieen'seli with. the base and Spindle Sad. spindle and base being of less diameter than, ne? radial diameter of the iiis. 'when radially .Contracted and a iev Qrereteefhell" eclsfad base and 'jaws Sil Shell" being ,0f entectd 'diameter for relative support enffsadspndle- :23W ehiikeeirrsinga retawble Spindle, and' a be@ fixed 'in fsiet't the 'Srdle racially' "eend-ine and contraen@ jaws Supported t0. if'ef eunie with ,the .base

" are as spinne; a 'iw operating @han se@- i i clinch onip'ris'ing a rotatable spindle baise, jawfsfoperatively supported on the base, a jaw operating shell inclosfing the iews, base. andrew 0f the Spindle with Spec@ e 1" and base. 3" 'are of slots. 1Q and properliff positioned.

between the spindle and peripheralwall of shell, and a tightening toolreceiving transverse port extending through said periphF eral wall of the shell.

4f. A chuck comprising a rotatable spindle and a base, jaws operatively supported on the base, a jaw operating shell section inclosing the jaws and base, a second shell section operatively supported on said spindle, and a space between the spindle and first stated shell section, and atubula'r` tight'- ening tool-receiving piece, said ypiece lconstitu'tin-v alsoA a means for fixedly joining the two `saidshell sections, substantially' as described. i

5. A two-way chuck comprising the conibination of a spindle and'jaw .supporting base,"a jaw operatingshell in -which the spindle and jaw base are longitudinally movable and rotatably fixed, jaws arranged inthe shell'and movableendwise with the spindle and' connected'with the base for radial movement androtatablein unison with bothbase and jaw shelhand 'an operating'shell rotatable inrespect to the jaw shell'and having a rentrant'contracted neck threadably, 'engaging' the lspindley to actuate theppartvs, ,v A. ,Y "of, A two-wa. chuck' comprising the combination of a t readed spindle, base lixed inrespect to the spindle andiprovided with radial projections and Aundercut grooves, jaws provded'with extending feet and radially slidable in the undercut'grooves, a jaw shellrotatably ''xed andlongitudinally movable' in respect to the 'spindle @lily-d' having a contracted extension withf'xannular space between it' and thel spindle,"and'an operating shell"rotatably connectedwith 'the shell and spindle alidfhaving a tapped .contracted neck 'engaging the threadedportion of the spindle and arranged in the space between it and the jaw shell extension. 7. In a chuck the'combination of a jaw shell of relatively large and small internal diameters and provided with slots extendl ing from the relatively large part through the relatively small part, a sectional ljaw base fittingV in the relatively large portion of the shell and'of which the sections may pass through the vslots and are each provided with projections adapted to extend.

into the slots, a spindle, and means for connecting the spindle andb'ase sections, substantially as described.

8. A' chuck comprising the combination of a ytapering 'jaw shell provided with grooved slots and a fixed covering cap, a base arranged in'the'jaw shell provided'with radial undercut 'grooves alined" with said slots, jaws arrangedv in the slots and provided with feet working in the grooves of the slot'sand in thel undercut grooves, and an operating shell turnably connected with the jaw shell and having a contracted neck.

arr/0,444= w 9. A chuck comprising a jaw shell proconnected with the jaw Shell and having a vided With internally operi tapering slots. neck of less diameter than the jaw shell a base arranged in the cavity of the Vjaw tlireadably connected with the Spindle to 10 shell, jaws arranged in the slots and slidactuate the parts, substantially as described. 5 ably connected with both base and jaw shell, Newark, New Jersey, this 28th of N0- a spindle rigid With the base, and an 0peratvember, 1917. ing shell turnably and endwise immovably JOSEPH H. RUSBY.

@epilee of thm patent may be -zbtained for ve cents each, by maremma the ommiioaen el Patente, Weshinmon, D. C. 

